Improvement in springs



Na. 83,360. v V Patemedoct. 27,1868.

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FRED ERICK CAJAR, OF YQRK, N. Y., ASSIGN'OR TO HIM'SELF ANDJAMES'ANDERS'ON, OF SAME PLACE.

Letters Patent Na. 83,360, ated October 2.7, 1,868.

IMPROVEMENT IN SPRIN'G-S.

Hop-* The4 Schednle referred to in these Letter; Patent and making part:of the same.

Tfl all 'whom it mW!! WWW: a sufliioient amount of resistance laterallyto maintain Be it known thatALFREDERICK AJAR, of the city, them in theright position, and also to increase their county, and State of NewYork, have invented a new Strength in the direction of 'the strain dueto the Weight and useful Improvement in Springs; and I do hereby theyare intended to bear.

deolare that the following is a full, clear, and exact They may be rmade of one or anyother number of description thereof, which Will enableothers skilled in strips or plates, and when more than one is used, theythe art to make and use the same, reference being had may be rivetedtogether, as shown at a, and the ends to the accompanying drawings,forming part of this may be pivoted together in any suitable manner, asspecification. represented in fig. 1, or provided With suitable bearhisinvention relates to'improvements in Springs, ings, When designed to beused, as in figs. 2 and 4. the object of which is to construct them inaform that By this* arrangement, I am enabled to construct will give therequisite strength with a Smaller amount Springs, suitable for allpurposes for which the ordi-I of metal than as at present constructed,and thereby nary ellipti'calor arched Springs are used, of very greatcheapenthe. cost. strength, With a much smaller amount of metal than Itconsists in constructing the Springs of corrugated is noW used, as Willbe readily understood. metal, and arranging the plates or strips so asto take My improved Springs may be hardened and' tempered the strain inthe direction of the breadth of the same. as other Springs made of steelare.

Figure l represents a side elevation. of an elliptical Having thusdescribed my invention, spring' constructed according to my improvement.What I claim as new, and desire to Secure by Letters Figure 2 representsa side elevation of an arcbed Patent, is;- spring. s p Elliptical'orarched Springs, made of corrugated sheets Figures 3, 4, and 5 representplan views of various or plates, arranged as hei-ein shown anddescribed, subforms of 4 Springs. stantially as and for the purpose setforth, Similar letters of reference iudicate. corresponding The abovespecification of my invention signed byme, parts. r this 17 th day ofAugust. 1868.

I propose to corrugate the plates or strips of metal FR. CAJAR. of whichthe Springs are to be formed, in order to' give Witnesses: them, whenarranged as represented in the drawings, FRANK BLOCKLEY, so as to takethe strain in the directionof their breadth, ALEX. F. RoBER'rs.

